1118443 has 4 divisors (see below), whose sum is σ = 1157040. Its totient is φ = 1079848.

The previous prime is 1118441. The next prime is 1118479. The reversal of 1118443 is 3448111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1118443 - 2¹ = 1118441 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1118441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19255 + ... + 19312.

It is an arithmetic number, because the mean of its divisors is an integer number (289260).

2^1118443 is an apocalyptic number.

1118443 is a deficient number, since it is larger than the sum of its proper divisors (38597).

1118443 is an equidigital number, since it uses as much as digits as its factorization.

1118443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38596.

The product of its digits is 384, while the sum is 22.

The square root of 1118443 is about 1057.5646552339. The cubic root of 1118443 is about 103.8017364262.

The spelling of 1118443 in words is "one million, one hundred eighteen thousand, four hundred forty-three".